It is abnormal to have brown discharge 1 week after menstruation. Normally, there will be no more vaginal blood discharge from the time of menstruation until the next menstruation, so if this brown discharge occurs, it may be clinically caused by the following reasons. The first one is the presence of inflammatory reaction, so this brown discharge is accompanied by pain in the lower abdomen. Secondly, it may be due to the change of hormone level in the body during the ovulation period, which causes a small amount of endometrial shedding and brown discharge, which often does not need to be treated and will clear on its own in about 3 days. In addition, this phenomenon may also be clinically due to submucosal fibroids, endometriosis or pelvic tumors, which may lead to brown discharge, and it is recommended to go to the hospital for a clear diagnosis if necessary.